EP0427324B1 - Verfahren und Vorrichtung zum Zuführen der Teile eines Materialbandes, die von einem Materialband geschnitten wurden - Google Patents
Verfahren und Vorrichtung zum Zuführen der Teile eines Materialbandes, die von einem Materialband geschnitten wurden Download PDFInfo
- Publication number
- EP0427324B1 EP0427324B1 EP90202891A EP90202891A EP0427324B1 EP 0427324 B1 EP0427324 B1 EP 0427324B1 EP 90202891 A EP90202891 A EP 90202891A EP 90202891 A EP90202891 A EP 90202891A EP 0427324 B1 EP0427324 B1 EP 0427324B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conveying
- conveyor
- strip
- strip portion
- cut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/66—Advancing articles in overlapping streams
- B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
- B65H29/6618—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
- B65H29/241—Suction devices
- B65H29/242—Suction bands or belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
- B65H35/08—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with revolving, e.g. cylinder, cutters or perforators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/20—Belts
- B65H2404/26—Particular arrangement of belt, or belts
- B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/32—Suction belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/176—Cardboard
- B65H2701/1766—Cut-out, multi-layer, e.g. folded blanks or boxes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0448—With subsequent handling [i.e., of product]
- Y10T83/0453—By fluid application
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2033—Including means to form or hold pile of product pieces
- Y10T83/2037—In stacked or packed relation
- Y10T83/2042—Including cut pieces overlapped on delivery means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2092—Means to move, guide, or permit free fall or flight of product
- Y10T83/2094—Means to move product at speed different from work speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2092—Means to move, guide, or permit free fall or flight of product
- Y10T83/2183—Product mover including gripper means
- Y10T83/2185—Suction gripper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2092—Means to move, guide, or permit free fall or flight of product
- Y10T83/2192—Endless conveyor
Definitions
- the present invention relates to a conveying device 1,35,42,52 for transporting strip portions 12 to be cut by a cutting device 2 from a material strip 11 in transverse direction of the material strip 11, which strip portions 12 are then laid overlapping in the manner of roof-tiles onto a stacker 3, comprising: a first conveyor 21 to be connected onto the cutting device 2, and a second conveyor 28 preceding the stacker 3 and transporting the cut strip portions 12 (see US-A-4 805 890).
- this strip-form material is fed at speeds up to 350 metres per minute to a cutting device in order to divide the material strip transversely into material portions of a desired length.
- the cutting device comprises two co-acting rollers provided with a knife blade and rotating in opposing directions, between which the material strip for cutting is guided.
- the knife blades cut the material strip with a scissor action, that is, from one side toward the other. In order during this cutting process to obtain a cutting line at right angles to the transporting direction the knife blades form an angle with the material strip.
- the cut strip portion is then transported at a higher speed to realize a mutual spacing, whereby it becomes possible to allow the trailing cut edge of the strip portion to fall to a level below the conveying surface during the subsequent stacking overlapping in the manner of roof-tiles.
- the following strip portion can rise with its leading cut edge against the sloping surface of the stacked strip portion and, optionally using additional brush-like braking means, be slowed down to a conveying speed lower than the supply speed.
- a spacing of 10-30 cm, depending on the length of the product, is sufficient at a suitable speed to lay the successive strip portions overlapping in the manner of roof-tiles.
- a drawback with this known conveying device and conveying method is that during cutting of the strip portion a tensile force is exerted thereon such that after being cut off the strip portion can immediately be accelerated to the desired higher conveying speed.
- the exertion of this tensile force on the strip portion for cutting off results, however, on the one hand to a greater tolerance for the cut-off length of the strip portion and on the other hand, owing to the relatively slow cutting process transversely of the strip portion, in the cut off portion being pulled crooked, which portion is then laid crooked on the subsequent transporting mechanism. This then leads during stacking in the stacker to damaging of the front protruding corner of the leading cut edge against the stop plate of the stacker, and to crooked stacking.
- the invention has for its object to avoid crooked roof-tile-like stacking of the cut strip portions and is based on the insight that crooked stacking is caused by the fact that the tensile force necessary for the higher conveying speed is already exerted on the strip portion prior to cutting thereof. According to the invention this tensile force is only exerted on the strip portion once it is cut off, or on the strip portion for cutting off, but in the latter case this tensile force is neutralised and has no effect on the cutting process.
- the invention thus provides a conveying device of the above-mentioned type, charachterized in that the first conveyor 21 transports the material strip 11 for cutting and the cut strip portions 12 at a first conveying speed V1 which is substantially equal to the supply speed V0 of the material strip 11, and the second conveyer 28 transports the cut strip portions 12 at a second conveyor speed V2 which is greater than the first conveying speed V1.
- the first conveyor should be provided with a first conveying section connecting to the cutting device in which a grip is exerted on the strip portion such that the tensile force of the second conveyor is completely neutralised.
- a grip is exerted on the strip portion such that the tensile force of the second conveyor is completely neutralised.
- the grip is reduced, but the conveying speed is maintained so that from that moment, under the influence of the second conveyor, the meanwhile cut off strip portion can be removed from the second conveying section while making slipping contact.
- first and second conveyor is in principle not of essential importance.
- a so-called vacuum conveyor is preferably used for the first conveyor, since the material strip for transporting and the cut strip portions are therein easily accessible from the top or the bottom. If a first and second conveying section are used, this vacuum conveyor comprises a first vacuum chamber and a second vacuum chamber located downstream thereof, wherein the pressure P1 in the first vacuum chamber is lower than the pressure P2 in the second vacuum chamber.
- a rise surface of the first conveyor connecting to the cutting device inclines upward from a position under a transporting surface of the cutting device. The paper strip is thus guided upward with support to the first conveyor.
- the tensile force necessary for the higher conveying speed is first exerted on the cut strip portion since the second conveyor comprises a transporting member which only comes into conveying contact with the strip portion with reciprocating means after this strip portion has been cut from the material strip.
- the second conveyor is thus only placed in a transporting position after the strip portion has been cut from the material strip.
- the reciprocating means preferably remove the transporting member from the transporting surface of the second conveyor.
- the reciprocating means preferably comprise a detector which detects the passage of the rear edge of the strip portion.
- the tensile force is only exerted on the cut strip portion in that, after the cutting process is ended, the second conveyor is activated such that it raises its conveying speed from V1 to V2 until the cut off strip portion has passed, whereafter its conveying speed returns to a conveying speed substantially equal to V1.
- the invention further relates to the more general transport principle underlying the conveying device according to the invention.
- This conveying method comprises for transporting strip portions cut from a material strip in transverse direction of the material strip, which strips are laid overlapping in the manner of roof-tiles on a stacker, the steps of:
- the first conveyor comprises a first conveying section which exerts a high grip on the strip portion and a second conveying section which exerts a lower grip on the strip portion, and wherein the second conveyor grips the strip portion with a grip such that the strip portion can only be removed from the second conveying section while making slipping contact with the second conveying section, a pressure P1 prevails in the first vacuum conveying section and a pressure P2 in the second vacuum conveying section, where P1 ⁇ P2.
- a transporting member of the second conveyor is preferably then first placed into a transporting position after the strip portion has been cut from the material strip, and removed from this transporting position after passage of the strip portion.
- the conveying speed of the second conveyor is preferably raised from a conveying speed substantially equal to V1 to the second conveying speed V2 when the strip portion has been cut off and, after this strip portion has passed through the second conveyor, the conveying speed is reduced to a conveying speed substantially equal to V1.
- Figure 1 shows the conveying device 1 according to the invention, which in this case is arranged in a device for manufacturing corrugated cardboard.
- the conveying device 1 connects onto a cutting device 2, and is followed by a stacker 3.
- the cutting device 2 comprises mutually co-acting rollers 9, 10, driven by a motor 4, provided with a curved knife blade 5, 6 and rotating in opposing directions according to the arrows 7, 8.
- a material strip 11 is cut into strip portions 12 which are laid overlapping in the manner of roof-tiles on a conveyor belt 13 of the stacker 3.
- the transporting surface 14 of the conveyor belt 13, which is formed by the upper part thereof, lies at a level lower than the level from where the strip portion 12 is supplied.
- the trailing cut edge 15 of the laid off strip portion 16 lies at a lower level than the leading cut edge 17 of the strip portion 12.
- the material strip 11 consists of three adjoining material strip widths 18-20.
- the conveying device 1 consists in this embodiment of a vacuum conveyor 21, which comprises a perforated conveyor belt 22 which is guided by means of reversing rollers 23, 24 around a vacuum box 25.
- This vacuum box comprises a first vacuum chamber 26 and a second vacuum chamber 27.
- an underpressure is applied in both vacuum chambers 26 and 27, wherein the pressure P1 in the first vacuum chamber 26 is lower than in the second vacuum chamber 27.
- the perforated conveyor belt 22 of the vacuum conveyor 21 is driven at a speed such that the conveying speed V1 is substantially equal to or greater than the supply speed V0 of the material strip 11.
- substantially equal means in this case that V1 is raised with a so-called overspeed, whereby the material strip 11 is held taut.
- This overspeed amounts to about 0-5%, and preferably 0-1.5% of the supply speed V0.
- a second conveyor 28 Connecting onto the first vacuum conveyor 21 is a second conveyor 28 which comprises a pair of transporting rollers 31 and 32 turning in opposing directions according to the arrows 30 and 65 respectively which can transport the strip portion 12 at a conveying speed V2 which is greater than the first conveying speed V1 such that a sufficient spacing is arranged between the strip portions 12 and 11.
- the conveying speed V2 is for example V0 + 10-30% , and more preferably V0 + 10-20% .
- the material strip 11 and the cut strip portion 12 are sucked fixedly onto the perforated conveyor belt 22 under the influence of the vacuum.
- the grip therein created is greater in a first conveying section 33 above the first vacuum chamber 26 than in a second conveying section 34 located above the second vacuum chamber 27. Further, the grip exerted in the first conveying section 33 is greater than the grip exerted with the transport rollers 31, 32. Thus achieved is that the tensile force exerted by these transport rollers 31, 32 is neutralised in the first conveying section 33 and therefore has no influence on the cutting process in the cutting device 2.
- the ideal length of the first conveyor 1 is a length which is slightly longer than the longest cut-off length of the material strip 12.
- the conveying device 1 according to the invention would be too long and could not be fitted into existing devices for manufacturing and cutting material strips.
- the conveying section 33 it has been found practical for the conveying section 33 to have a length of about 0.2-1 m, and the subsequent second conveying section to have a length of 0.5-2 m.
- the transport rollers 31, 32 make slipping contact with this strip portion 12. After passing over or passing in large part over the conveying section 33 (decreasing grip) this slipping contact of the transport rollers 31, 32 will lessen and the strip portion will be accelerated to the second conveying speed V2. If the strip portions 12 are relatively short, the cut strip portion can then already be present in the second conveying section 34 before entering the sphere of influence of the second conveyor 28 which, after contact, accelerates the strip portion 12 to the second conveying speed V2.
- FIG. 2 shows a variant of the conveying device 1 according to the invention.
- the same or equivalent device elements are designated with the same reference numerals.
- This conveying device 35 comprises a vacuum conveyor 36 with a perforated conveyor belt 22 which is guided around the vacuum box 25 which is provided with one vacuum chamber 37, the underpressure of which is maintained with the vacuum pump 29.
- the greater grip which is exerted on the strip portion 12 or the material strip for cutting 11 is effected by a conveyor 39 located above the upper part 38 of the conveyor belt 22 which, with the conveyor belt 40 driven by the motor 41, exerts a grip such that the strip portion 12 can then only be transported through the conveyor 28 at the greater conveying speed V2 after the strip portion 12 has wholly or substantially left the first conveying section 33 and has arrived in the second conveying section 34.
- the strip portions 12 have a relatively short length, and the strip portion 12 first enters the second conveying section 34 before it is gripped by the second conveyor 28, which transports the strip portion 50 accelerated to the increased conveying speed V2 in the direction of the stacker 3.
- Figure 4 shows a conveying device 52 according to the invention, which is particularly used if the length of the cut strip portion 12 is greater than the distance a between the cutting device 2 and the second conveyor 28.
- the first conveyor 53 comprises a vacuum conveyor with a simple vacuum box, in which a vacuum decreasing in the conveying direction is maintained with a vacuum pump 54.
- This vacuum has the function of holding fixedly the strip portion 12 for cutting and not the function of neutralising a tensile force generated by the second conveyor 28 - the second conveyor 28 is first activated after the cutting.
- the strip portion 12 for cutting off is therefore well fixed on the perforated conveyor belt 22 during the cutting process performed by the cutting device 2.
- the leading edge 17 of the now cut off strip portion 12 has passed the second conveyor 28, wherein the strip portion 12 rests only on the transport roller 32, which rotates at a rotation speed corresponding to the conveying speed V1.
- the upper transport roller 31 is raised from the conveying position wherein contact is made with the surface of the strip portion 12.
- a signal is passed via an information line 58 from the cutting device 2 to the processing unit 59, which in turn activates both the cylinders 55 and 56 via the information lines 60 and 61 such that the upper transport roller 31 is placed in the conveying position.
- both transport rollers 31 and 32 are moreover brought to the second conveying speed V2, whereby after making contact with the strip portion 12, this strip portion 12 is transported at the higher speed to the stacker 3.
- this information is passed via the information line 65 to the processing unit 59, which in turn removes the transport roller 31 out of the conveying position by means of cylinders 55 and 56, this being done before the leading edge of the following strip portion for cutting off reaches the second conveyor 28.
- the conveying speed of the upper transport roller 31 it is possible to maintain the conveying speed of the upper transport roller 31 constantly at conveying speed V2.
- the cut strip portion 12 is then only transported after the upper transport roller 31 is brought into the conveying position (exerting grip on the strip portion 12). Further, the conveying speed of the transport roller 32 is returned to the conveying speed V1. It is thus once again possible to cut the material strip 11 without tensile force and only then to transport the cut strip portion 12 at a higher speed once it has been cut off.
- the processing unit 59 it is possible to use the processing unit 59 to directly control the motor 62 and not carry the transport roller 31 out of its conveying position.
- the transport rollers 31 and 32 turn at a first conveying speed which is equal to V1, but their conveying speed is temporarily raised to V2 after the strip portion 12 is cut by the cutting device 2.
- the conveying speed is then lowered once again to V1 after passage of the rear edge 64 is observed by the detector 63.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Attitude Control For Articles On Conveyors (AREA)
- Intermediate Stations On Conveyors (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Claims (20)
- Transportvorrichtung (1, 35, 42, 52) zur Förderung von Bandabschnitten (12), die mit einer Schneidvorrichtung (2) von einem Materialband (11) in Richtung quer zu dem Materialband (11) geschnitten, und dann überlappend in der Art von Dachpfannen in einem Stapler (3) abgelegt werden, mit:
einem ersten Förderer (21), welcher zur Verbindung mit der Schneidvorrichtung (2) ausgelegt ist, und einem zweiten Förderer (28), welcher dem Stapler (3) vorangestellt ist und die abgeschnittenen Bandabschnitte (12) transportiert,
dadurch gekennzeichnet, daß
der erste Förderer (21) das Materialband (11) zum Schneiden und die abgeschnittenen Bandabschnitte (12) mit einer ersten Transportgeschwindigkeit V₁ fördert, welche im wesentlichen gleich der Zufuhrgeschwindigkeit V₀ des Materialbandes (11) ist, und der zweite Förderer (28) die abgeschnittenen Bandabschnitte (12) mit einer zweiten Transportgeschwindigkeit V₂ fördert, welche größer als die erste Transportgeschwindigkeit V₁ ist. - Transportvorrichtung (1, 35, 42, 52) nach Anspruch 1, bei welcher der erste Förderer (21) einen ersten Transportabschnitt (33) und einen zweiten Transportabschnitt (34) umfaßt und der in dem zweiten Transportabschnitt (34) auf den Bandabschnitt (12) ausgeübte Zugriff zum Fördern geringer als in dem ersten Transportabschnitt (33) ist; und wobei der zweite Förderer (34) den Bandabschnitt (12) mit einem Zugriff erfaßt, so daß der Bandabschnitt (12) nur von dem zweiten Transportabschnitt (34) mit gleitendem Kontakt bewegt werden kann.
- Transportvorrichtung (1, 35, 52) nach Anspruch 1 oder 2, bei welcher der erste Förderer einen Unterdruckförderer (21) umfaßt.
- Transportvorrichtung (1, 35, 52) nach Anspruch 3, bei welcher der Unterdruckförderer (21) eine erste Unterdruckkammer (26) und eine stromabwärts angeordnete zweite Unterdruckkammer (27) umfaßt, wobei der Druck P₁ in der ersten Unterdruckkammer (26) geringer als der Druck P₂ in der zweiten Unterdruckkammer (27) ist.
- Transportvorrichtung (1, 35, 42, 52) nach den Ansprüchen 1-4, bei welcher eine angehobene Oberfläche des ersten Förderers (21), der mit der Schneidvorrichtung (2) verbunden ist, von einer Position unter einer Transportoberfläche der Schneidvorrichtung (2) sich abwärts neigt.
- Transportvorrichtung (52) nach den Ansprüchen 1-5, bei welcher der zweite Förderer (28) ein transportierendes Element (31) umfaßt, welches nur in transportierenden Kontakt mit dem Bandabschnitt (12) durch hin- und herbewegende Einrichtungen (57) kommt, nachdem dieser Bandabschnitt (12) von dem Materialband (11) geschnitten worden ist.
- Transportvorrichtung (52) nach Anspruch 6, bei welcher die hin- und herbewegenden Einrichtungen (57) das transportierende Elemente (31) von der Transportoberfläche des zweiten Förderers (28) entfernen, nachdem der abgeschnittene Bandabschnitt (12) den zweiten Förderer (28) passiert hat.
- Transportvorrichtung (52) nach Anspruch 7, bei welcher die hin- und herbewegenden Einrichtungen (57) einen Detektor (63) umfassen, welcher den Durchgang der hinteren Kante (64) des Bandabschnitts (12) ermittelt.
- Transportvorrichtung (52) nach den Ansprüchen 6-8, bei welcher der zweite Förderer (28) ein Paar Rollen (31, 32) umfaßt, wovon die obere Rolle (31) durch hin- und herbewegende Einrichtungen (57) relativ zu der unteren Rolle (32) reziprok beweglich ist.
- Verfahren zum Fördern von Bandabschnitten (12), welche von einem Materialband (11) in Richtung quer zum Materialband (11) geschnitten werden, und die Bandabschnitte (12) überlappend in der Art von Dachpfannen in einem Stapler abgelegt werden, mit den folgenden Schritten:i) Transportieren des Materialbandes (11) zum Schneiden und der abgeschnittene Bandabschnitt (12) mit einem ersten Förderer (21) bei einer ersten Transportgeschwindigkeit V₁, welche im wesentlichen gleich der Zufuhrgeschwindigkeit V₀ des Materialbandes (11) ist; undii) Transportieren des abgeschnittenen Bandabschnitts (12) mit einem zweiten Förderer (28) bei einer zweiten Transportgeschwindigkeit V₂, welche größer als die erste Transportgeschwindigkeit V₁ ist.
- Verfahren nach Anspruch 12, bei welchem der erste Förderer (21) einen ersten Transportabschnitt (33) umfaßt, welcher einen starken Zugriff auf den Bandabschnitt (12) ausübt und einen zweiten Transportabschnitt (34), welcher einen geringeren Zugriff auf den Bandabschnitt (12) ausübt, und wobei der zweite Förderer (28) den Bandabschnitt (12) so mit einem Zugriff faßt, daß der Bandabschnitt (12) nur von dem zweiten Transportabschnitt (34) durch Herstellen eines gleitenden Kontakts mit dem zweiten Transportabschnitt (34) entfernt werden kann.
- Verfahren nach Anspruch 12 oder 13, bei welchem die Transportgeschwindigkeit des zweiten Förderers (28) von einer Transportgeschwindigkeit, die im wesentlichen gleich V₁ ist, auf eine Transportgeschwindigkeit V₂ angehoben wird, wenn der Bandabschnitt (12) abgeschnitten ist und die Transportgeschwindigkeit auf eine Transportgeschwindigkeit im wesentlichen gleich V₁ reduziert wird, nachdem der Bandabschnitt (12) den zweiten Förderer (28) passiert hat.
- Verfahren nach den Ansprüchen 12-14, bei welchem ein transportierendes Element (31) des zweiten Förderers (28) erst dann in eine fördernde Stellung gebracht wird, nachdem der Bandabschnitt (12) von dem Materialband (11) geschnitten wurde und aus dieser fördernden Stellung nach Passieren des Bandabschnitts (12) entfernt wird.
- Verfahren nach Anspruch 15, bei welchem die Transportgeschwindigkeit des transportierenden Elements (31) im wesentlichen gleich V₂ ist.
- Verfahren nach den Ansprüchen 12-18, bei welchem der erste Förderer einen Unterdruckförderer (21) umfaßt.
- Verfahren nach den Ansprüchen 12-19, bei welchem der Unterdruckförderer (21) einen ersten Unterdruckförderabschnitt (33) umfaßt, in dem ein Druck P₁ herrscht und einen zweiten Unterdruckförderabschnitt (34), in dem ein Druck P₂ herrscht, wobei P₁ < P₂ ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8902753A NL8902753A (nl) | 1989-11-07 | 1989-11-07 | Werkwijze en inrichting voor het transporteren van uit een materiaalbaan gesneden materiaalbaandelen. |
NL8902753 | 1989-11-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0427324A1 EP0427324A1 (de) | 1991-05-15 |
EP0427324B1 true EP0427324B1 (de) | 1995-02-08 |
Family
ID=19855585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90202891A Expired - Lifetime EP0427324B1 (de) | 1989-11-07 | 1990-11-01 | Verfahren und Vorrichtung zum Zuführen der Teile eines Materialbandes, die von einem Materialband geschnitten wurden |
Country Status (6)
Country | Link |
---|---|
US (1) | US5193423A (de) |
EP (1) | EP0427324B1 (de) |
JP (1) | JP2954693B2 (de) |
DE (1) | DE69016745T2 (de) |
ES (1) | ES2067654T3 (de) |
NL (1) | NL8902753A (de) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
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ES2108604B1 (es) * | 1994-02-23 | 1998-07-16 | Pasaban S A | Mejoras introducidas en maquinas-cortadoras-apiladoras de papel cartono similares. |
US5699707A (en) * | 1995-02-01 | 1997-12-23 | Automated Solutions, Llc | High speed sheet material cutter and method of using same |
CA2172082A1 (en) * | 1995-03-24 | 1996-09-25 | Carl R. Marschke | Sheet saving diverter for corrugator |
US5676517A (en) * | 1995-07-26 | 1997-10-14 | Lotz; Walter E. | Method and apparatus for stacking thin sheets carrying product |
WO1998028192A1 (en) * | 1996-12-20 | 1998-07-02 | Interket Trykkeri A/S | Label stacker for a rotary machine/apparatus |
AU6657998A (en) * | 1997-02-14 | 1998-09-08 | Didde Web Press Corporation | Sheeter having non-top surface contact sheeting and shingling mechanism |
US6073527A (en) * | 1997-04-11 | 2000-06-13 | Marquip, Inc. | Method and apparatus for direct shingling of cut sheets at the cutoff knife |
WO1998046400A1 (en) * | 1997-04-14 | 1998-10-22 | Preco Industries, Inc. | Clamshell die cutting press having automatic sheet feeder |
US6823763B1 (en) * | 1997-05-30 | 2004-11-30 | Sara Lee Corporation | Automated garment piece cutter |
DE19755058C1 (de) * | 1997-12-11 | 1999-08-12 | Lohmann Therapie Syst Lts | Einrichtung mit Saugöffnungen zur Übergabe von flächenhaften Produkten auf ein Transportband |
US6374578B1 (en) | 1998-02-10 | 2002-04-23 | Southpac Trust International, Inc. | Floral wrapper having printed design with shaded and highlighted areas |
FI111446B (fi) * | 1998-06-01 | 2003-07-31 | Metso Paper Inc | Järjestely sellunkuivatuskoneen arkkileikkurissa |
JP3714447B2 (ja) * | 1998-06-15 | 2005-11-09 | ノーリツ鋼機株式会社 | 感光材料排出装置 |
ES2189547B1 (es) * | 1998-12-17 | 2004-04-01 | Comercial De Tecnologia Sanitaria, S.A. | Maquina para el corte y soldadura de cinta continua de material plastico; en especial para cinturones de seguridad de vehiculos y similares. |
DE19925339C2 (de) * | 1999-06-02 | 2003-02-27 | Lohmann Therapie Syst Lts | Verfahren und Vorrichtung zum Herstellen eines Produktes aus Streifenband, insbesondere eines medizinischen und/oder wirkstoffhaltigen Produktes sowie befüllbaren Behältern oder Siegelrandbeuteln |
DE19939163C1 (de) * | 1999-08-20 | 2001-03-15 | Koenig & Bauer Ag | Verfahren zur Verarbeitung von Wertpapieren |
US6467382B2 (en) * | 2000-02-07 | 2002-10-22 | Spartanics | Extractor for extracting cut partially cut parts from a sheet of material |
FI119362B (fi) * | 2006-09-21 | 2008-10-31 | Raute Oyj | Menetelmä ja laitteisto vajaaviilun talteenottamiseksi viilun tuotannossa |
JP2008264967A (ja) * | 2007-04-24 | 2008-11-06 | Komori Corp | シーター装置 |
JP4977596B2 (ja) * | 2007-06-26 | 2012-07-18 | 株式会社名南製作所 | 定形のシート類の搬送方法及び搬送装置 |
US7980543B2 (en) * | 2007-08-10 | 2011-07-19 | Goss International Americas, Inc. | Printing press folder with parallel process transport tapes |
US8100038B2 (en) | 2008-11-19 | 2012-01-24 | Goss International Americas, Inc. | Folder for adjustably tensioning a web and method of adjusting web tension as a web is cut |
US8172982B2 (en) * | 2008-12-22 | 2012-05-08 | Kimberly-Clark Worldwide, Inc. | Conductive webs and process for making same |
JP5423366B2 (ja) * | 2009-12-08 | 2014-02-19 | 富士ゼロックス株式会社 | シート材搬送装置、画像形成装置 |
CN103704918B (zh) * | 2012-10-05 | 2015-07-29 | 株式会社岛精机制作所 | 片材的裁断层叠装置及片材的裁断层叠方法 |
FR2998911B1 (fr) * | 2012-11-30 | 2014-12-26 | Onduline Sa | Procede de fabrication de faitieres en cellulose impregnee de bitume, machines de fabrication |
CN105253682B (zh) * | 2015-09-30 | 2017-03-29 | 浙江大学 | 一种顶针定位模切纸品输送设备 |
US9884729B1 (en) | 2016-12-15 | 2018-02-06 | Joy Mm Delaware, Inc. | Spring retainer for high angle conveyor |
CN108385353B (zh) * | 2018-03-15 | 2020-08-21 | 叶新新 | 一种断布机 |
US11008171B2 (en) | 2018-07-16 | 2021-05-18 | Joy Global Conveyors Inc | Deflector for high angle conveyor pressing assembly |
AU2019226160A1 (en) | 2018-09-05 | 2020-03-19 | Continental Global Material Handling Llc | High angle conveyor with self-adjusting inflection zone assembly |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US1545912A (en) * | 1921-05-13 | 1925-07-14 | Charles B Maxson | Feeding and stacking method and machine |
US2852256A (en) * | 1955-09-09 | 1958-09-16 | Milprint Inc | Art of delivering flexible sheets |
US3595564A (en) * | 1968-05-15 | 1971-07-27 | North American Rockwell | Apparatus for handling sheets |
JPS497008B1 (de) * | 1969-01-25 | 1974-02-18 | ||
US3827545A (en) * | 1972-12-04 | 1974-08-06 | Scott Paper Co | Method and apparatus for changing the spacing between discrete, flexible web product |
US4289052A (en) * | 1979-10-05 | 1981-09-15 | Molins Machine Company, Inc. | Web gap control for corrugator |
US4385537A (en) * | 1980-05-24 | 1983-05-31 | E.C.H. Will (Gmbh & Co.) | Apparatus for engaging and transporting discrete sheets of paper or the like |
FR2527573A1 (fr) * | 1982-05-27 | 1983-12-02 | Cuir Sa | Procede et dispositif de transfert d'une feuille de materiau d'un ensemble a un autre |
FR2527570A1 (fr) * | 1982-05-27 | 1983-12-02 | Cuir Sa | Procede de transport de feuilles |
US4627608A (en) * | 1985-05-01 | 1986-12-09 | Gill Studios, Inc. | Vacuum take-off conveyor |
JPS63180670A (ja) * | 1987-01-21 | 1988-07-25 | Isowa Ind Co | 板状シ−トの区分け方法 |
US4805890A (en) * | 1987-08-06 | 1989-02-21 | Merrill David Martin | Sheet stacking machine |
GB8729442D0 (en) * | 1987-12-17 | 1988-02-03 | Chambon Ltd | Carton blank die-cutting machine assembly |
DE3809588A1 (de) * | 1988-03-22 | 1989-10-05 | Goebel Gmbh Maschf | Ablege-einrichtung |
DE3838078C3 (de) * | 1988-11-10 | 1998-08-13 | Roland Man Druckmasch | Vorrichtung zum Fördern eines Stroms von Bogen |
-
1989
- 1989-11-07 NL NL8902753A patent/NL8902753A/nl not_active Application Discontinuation
-
1990
- 1990-11-01 EP EP90202891A patent/EP0427324B1/de not_active Expired - Lifetime
- 1990-11-01 ES ES90202891T patent/ES2067654T3/es not_active Expired - Lifetime
- 1990-11-01 DE DE69016745T patent/DE69016745T2/de not_active Expired - Fee Related
- 1990-11-05 US US07/609,832 patent/US5193423A/en not_active Expired - Lifetime
- 1990-11-07 JP JP2303729A patent/JP2954693B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0427324A1 (de) | 1991-05-15 |
JP2954693B2 (ja) | 1999-09-27 |
NL8902753A (nl) | 1991-06-03 |
DE69016745T2 (de) | 1995-06-22 |
US5193423A (en) | 1993-03-16 |
DE69016745D1 (de) | 1995-03-23 |
ES2067654T3 (es) | 1995-04-01 |
JPH03205255A (ja) | 1991-09-06 |
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